On Thu, Jan 21, 2010 at 09:05:06AM +0100, LiM wrote:
> Hello,
>
> i have the same problem as
> http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/11441
> also with Hercules Smart TV Stereo ..
> works OK audio+video on ..2.6.29-gentoo-r5 + bttv 0.9.17
> but NO AUDIO on linux-2.6.31-gentoo-r6 + bttv 0.9.18
>
> cat /etc/modprobe.d/bttv.conf
> options tvaudio tda9874a=1 tda9874a_STD=0
> options bttv radio=0 card=100 tuner=29 gbuffers=14 i2c_udelay=128 pll=1
> autoload=1
>
> 2.6.29-gentoo-r5 + bttv 0.9.17
> bttv: driver version 0.9.17 loaded
> bttv: using 14 buffers with 2080k (520 pages) each for capture
> bttv: Bt8xx card found (0).
> bttv 0000:04:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> bttv0: Bt878 (rev 17) at 0000:04:01.0, irq: 16, latency: 64, mmio:
> 0xf8ffe000
> bttv0: using: Hercules Smart TV Stereo [card=100,insmod option]
> IRQ 16/bttv0: IRQF_DISABLED is not guaranteed on shared IRQs
> bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init]
> tvaudio' 6-0058: found tda9874a.
> tvaudio' 6-0058: tda9874h/a found @ 0xb0 (bt878 #0 [sw])
> tvaudio' 6-004b: pic16c54 (PV951) found @ 0x96 (bt878 #0 [sw])
> bttv0: tuner type=29
> bttv0: i2c: checking for TDA9875 @ 0xb0... found
> bttv0: i2c: checking for TDA7432 @ 0x8a... not found
> All bytes are equal. It is not a TEA5767
> tuner' 6-0060: chip found @ 0xc0 (bt878 #0 [sw])
> tuner-simple 6-0060: creating new instance
> tuner-simple 6-0060: type set to 29 (LG PAL_BG (TPI8PSB11D))
> bttv0: registered device video1
> bttv0: registered device vbi0
> bttv0: PLL: 28636363 => 35468950 .. ok
>
> linux-2.6.31-gentoo-r6 + bttv 0.9.18
> bttv: driver version 0.9.18 loaded
> bttv: using 14 buffers with 2080k (520 pages) each for capture
> bttv: Bt8xx card found (0).
> bttv0: Bt878 (rev 17) at 0000:04:01.0, irq: 16, latency: 64, mmio:
> 0xf8ffe000
> bttv0: using: Hercules Smart TV Stereo [card=100,insmod option]
> IRQ 16/bttv0: IRQF_DISABLED is not guaranteed on shared IRQs
> bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init]
> bttv0: tuner type=29
> tvaudio 0-0058: found tda9874a.
> tvaudio 0-0058: tda9874h/a found @ 0xb0 (bt878 #0 [sw])
> All bytes are equal. It is not a TEA5767
> tuner 0-0060: chip found @ 0xc0 (bt878 #0 [sw])
> tuner-simple 0-0060: creating new instance
> tuner-simple 0-0060: type set to 29 (LG PAL_BG (TPI8PSB11D))
> bttv0: registered device video0
> bttv0: registered device vbi0
> bttv0: PLL: 28636363 => 35468950 .
> bttv0: PLL: 28636363 => 35468950 .
> bttv0: PLL: 28636363 => 35468950 . ok
>
>
> I think problem is in new bttv driver, in modules is new options
> audiodev and tvaudio is loading with bttv? and this line:
> "tvaudio' 6-004b: pic16c54 (PV951) found @ 0x96 (bt878 #0 [sw])"
> is only with older bttv.
>
> modinfo -k 2.6.31-gentoo-r6 bttv
> ---cut--
> parm: autoload:obsolete option, please do not use anymore (int)
> parm: audiodev:specify audio device:
> -1 = no audio
> 0 = autodetect (default)
> 1 = msp3400
> 2 = tda7432
> 3 = tvaudio (array of int)
> ---cut--
>
> How can i load module with new bttv to get sound working?
>
> rdgs
>
> Michal Vesely
>
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For my Hercules Smart TV card sound also disappeared after 2.6.29
with the message:"bttv0: audio absent, no audio device found!"
I have bisected the problem to commit 859f0277a6c3ba59b0a5a1eb183f8f6ce661a95d:
"bttv: convert to v4l2_subdev since i2c autoprobing will disappear"
If I revert this everything works again
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